About the Road Services Division

Traffic on 140th Avenue SE and SE Petrovitsky Road in unincorporated King County.

The Road Services Division is responsible for all county-owned roads, bridges and related infrastructure in the unincorporated area of King County.

As of January 1, 2019, Roads is part of the King County Department of Local Services. The Department also includes the Permitting Division and the Community Service Areas Program. The department director reports to the King County Executive, who is the elected executive officer of county government.

The Metropolitan King County Council, the legislative branch of county government, adopts laws, sets policies and holds final approval over the budget.

Road Services Director: Tricia Davis

Facts and figures

This data is the King County Road Services Division’s (“Roads”) asset data for the calendar year. The information is updated annually and represents a moment in time. Asset inventory numbers can fluctuate slightly over time due to the addition of new assets and retirement of old assets.

2021-2022 Roads Adopted Budget
Staff	Capital Program	Operating Budget	Total
394.5	$46.5M	$241.3M	$287M

2023-2024 Roads Adopted Budget
Staff	Capital Program	Operating Budget	Total
434.6	$74.5M	$250.4M	$324.9M

County Population
	2020	2023
Population of King County	2,153,700	2,190,200
Population of Unincorporated King County (Roads Service Area)	247,060	247,240

County-Owned Assets
Maintained Center Lines 1469	Maintained Lane Miles 2965	Bridges 188	Street Lights 707
Traffic Cameras 57	Traffic Signals 79	Traffic Control Signs 47,322	Guardrails 119 miles
Sidewalk Miles 275	School Zone Flashers 149	Radar Speed Signs 46	Cross-walks 728
Drainage Pipe 3.4 million linear feet	Drainage Ditch 4.6 million linear feet	Catch Basins >27,637	Culverts >28,525